I don't include sites like PC among the traditional social media sites because they clearly provide huge value and that is undisputed. That said, I have refused to join FB and every other social media platform since their inception. I personally believe they are doing tremendous harm to our culture and to people individually, people who spend massive amounts of precious time worrying about what shallow crisis is happening on their Instagram or FB or whatever when they could be spending time and energy interacting with actual humans and improving their real social skills, learning how to interact with and in the actual world. Deal with real issues. Social media has created a fake universe with its own shallow priorities and values, priorities and values that do not, in my opinion, have much use or value in the real, actual world. I realize and acknowledge that I am in the extreme minority on this, but this is how I feel. Apologies to everyone who feels they get a lot from social media. Not trying to be rude here. I just think these sites do a lot of harm and no one ever seems to talk about this. Oh well, to each her own.